Chemistry concepts and calculations

You have a solution of 0.15M Ba(OH)2 and a solution of H2SO4 whose concentration

You have a solution of 0.15M Ba(OH)2 and a solution of H2SO4 whose concentration you want to determine. You start with 25 ml H2SO4 in the Erlenmeyer and titrate in the Ba(OH)2. At…

You have a solution of a compound which contains one of the following potassium

You have a solution of a compound which contains one of the following potassium nitrite sodium carbonate sodium sulfite thioacetamide hydrogen peroxide sodium bromide potassium io…

You have a solution of an octahedral coordination complex with a metal you do no

You have a solution of an octahedral coordination complex with a metal you do not know, [M(H2O)6]2+, which has an orange color. To make other colors a chemist has synthesized two …

You have a solution of benzoic acid in diethyl ether (d = 0.7) along with other

You have a solution of benzoic acid in diethyl ether (d = 0.7) along with other unknown neutral compounds. You treat the solution with 1M HCl and isolate the aqueous layer. But ne…

You have a solution that contains 0.1 M Ag + , 0.1 M Cu 2+ and 0.1 M Ba 2+ . You

You have a solution that contains 0.1 M Ag + , 0.1 M Cu 2+ and 0.1 M Ba 2+ . You would like to separate these ions by precipitation. For quality p urposes, the relative error must…

You have a solution that contains 0.1 M Ag+ , 0.1 M Cu2+ and 0.1 M Ba2+. You wou

You have a solution that contains 0.1 M Ag+ , 0.1 M Cu2+ and 0.1 M Ba2+. You would like to separate these ions by precipitation. For quality purposes, the relative error must be b…

You have a solution that contains the following cations: Ag^+, K^+ and Fe^+3. Yo

You have a solution that contains the following cations: Ag^+, K^+ and Fe^+3. You first add a few drops of 1 M HCI to the mixture. What will you observe? Include colors and appear…

You have a spring that stretches 0.070 m when a 0.10-kg block is attached to and

You have a spring that stretches 0.070 m when a 0.10-kg block is attached to and hangs from it. Imagine that you slowly pull down with a spring scale so the block is now below the…

You have a standard solution of an amino acid which is certified by the manufact

You have a standard solution of an amino acid which is certified by the manufacturer to contain 184.7 mol/mL (±0.3) . You would like to dilute it by a factor of 100. Two possible …

You have a standard solution of an amino acid which is certified by the manufact

You have a standard solution of an amino acid which is certified by the manufacturer to contain 184.7 mol/mL (±0.3) . You would like to dilute it by a factor of 100. Two possible …

You have a stock solution certified by a manufacturer to contain 150.0 plusminus

You have a stock solution certified by a manufacturer to contain 150.0 plusminus 0.3 mu.g SO_4^2- /mL. You would like to dilute it by a factor of 100 to obtain 1.500 mu g/mL. Two …

You have a stock solution certified by a manufacturer to contain 160.0 ± 0.3 µg

You have a stock solution certified by a manufacturer to contain 160.0 ± 0.3 µg SO42/mL. You would like to dilute it by a factor of 100 to obtain 1.600 µg/mL. Two possible methods…

You have a summer job as an intern in an analytical chemistry laboratory. You ar

You have a summer job as an intern in an analytical chemistry laboratory. You are about to titrate a solution of nicotine (pK_s = 6 0). which is a base similar to ammonia, with a …

You have a summer job as an intern in an analytical chemistry laboratory. You ar

You have a summer job as an intern in an analytical chemistry laboratory. You are about to titrate a solution of nicotine (pK - 6.0). which is a base similar to ammonia, with a st…

You have a well-funded research laboratory and want to study the double-stranded

You have a well-funded research laboratory and want to study the double-stranded DNA fragment below. Describe the steps you would go through to prepare this fragment (syntheticall…

You have an aqueous solution of chromium(III) nitrate that you titrate with an a

You have an aqueous solution of chromium(III) nitrate that you titrate with an aqueous solution of sodium hydroxide. After a certain amount of titrant has been added, you observe …

You have an aqueous solution of chromium(III) nitrate that you titrate with an a

You have an aqueous solution of chromium(III) nitrate that you titrate with an aqueous solution of sodium hydroxide. After a certain amount of titrant has been added, you observe …

You have an aqueous solution of chromium(III) nitrate that you titrate with an a

You have an aqueous solution of chromium(III) nitrate that you titrate with an aqueous solution of sodium hydroxide. After a certain amount of titrant has been added, you observe …

You have an aqueous solution of protein at a concentration of 15 mg protein/mL.

You have an aqueous solution of protein at a concentration of 15 mg protein/mL. You are asked to prepare 5 mL of a 1 mg protein/mL solution. Describe the actions, step-by-step (sh…

You have an array called MyAarray) composed of numbers. You are to write a C+ wi

You have an array called MyAarray) composed of numbers. You are to write a C+ will check the number in the array to do the following: program that if the number is divisible by 3 …

You have an inexpensive heartburn tablet that is primarily calcium carbonate (Ca

You have an inexpensive heartburn tablet that is primarily calcium carbonate (CaCO3), sucrose (sugar) with a small amount of mineral oil and wish to isolate the calcium carbonate …

You have an odd friend: she is convinced that she can lose weight on a diet cons

You have an odd friend: she is convinced that she can lose weight on a diet consisting entirely of walrus blubber (she read it on Wikipedia so it must be true, right?!). Aside fro…

You have an unknown compound and are told that it is ONE of the two possibilitie

You have an unknown compound and are told that it is ONE of the two possibilities A or B. Describe concisely how you could decide from the IR spectrum of your sample which compoun…

You have an unknown dye solution whose concentration seems to lie between 0.0006

You have an unknown dye solution whose concentration seems to lie between 0.0006M stock solution and a 0.0004 stock solution. Therefore, you had planned to dilute the 0.0006M stoc…

You have an unknown dye solution whose concentration seems to lie between 0.0006

You have an unknown dye solution whose concentration seems to lie between 0.0006M stock solution and a 0.0004 stock solution. Therefore, you had planned to dilute the 0.0006M stoc…

You have an unknown dye solution whose concentration seems to lie between a 0.00

You have an unknown dye solution whose concentration seems to lie between a 0.0006 M stock solution and a 0.0004 M stock solution. Therefore, you had planned to dilute the 0.0006 …

You have an unknown dye solution whose concentration seems to lie between a 0.00

You have an unknown dye solution whose concentration seems to lie between a 0.0006 M stock solution and a 0.0004 M stock solution. Therefore, you had planned to dilute the 0.0006 …

You have an unknown dye solution whose concentration seems to lie between a 0.00

You have an unknown dye solution whose concentration seems to lie between a 0.0006 M stock solution and a 0.0004 M stock solution. Therefore, you had planned to dilute the 0.0006 …

You have an unknown sample with an observed melting point of 90.0-92.5 degrees C

You have an unknown sample with an observed melting point of 90.0-92.5 degrees Celsius. Is this better evidence for the unknown to be compound A with a melting point of 95.5-96.0 …

You have at your lab bench the following chemicals: NaH2PO4 (s), Na2HPO4 (s), Na

You have at your lab bench the following chemicals: NaH2PO4 (s), Na2HPO4 (s), Na3PO4 (s), NH4Cl (s), NaCH3COO (s), CH3COOH (l), 1.00 M NH3, and deionized water. You also have stan…

You have been asked by the local coal power plant to conduct some carbon sequest

You have been asked by the local coal power plant to conduct some carbon sequestration experiments aimed at determiing the efficacy of the local crystalline basement rocks to sequ…

You have been asked to analyze the following business for a new database system:

You have been asked to analyze the following business for a new database system: Kansas Movie Theatre is a small movie theater in downtown Kansas. It only has three movie screens …

You have been asked to compound 30 g of a 10% w/w zinc oxide cream. You only hav

You have been asked to compound 30 g of a 10% w/w zinc oxide cream. You only have 40% w/w zinc oxide cream in stock. How much grams of this 40% stock cream will you mix with pure …

You have been asked to design a program for calculating the percentage increase

You have been asked to design a program for calculating the percentage increase or decrease of the market value of the Connors Building from January 2010 to January 2011. The prog…

You have been asked to experimentally determine the Calorie (1 Calorie = 1000 ca

You have been asked to experimentally determine the Calorie (1 Calorie = 1000 calories) values of various desserts. You realize that a combustion reaction is analogous to the dige…

You have been asked to experimentally determine the Calorie (1 Calorie = 1000 ca

You have been asked to experimentally determine the Calorie (1 Calorie = 1000 calories) values of various desserts. You realize that a combustion reaction is analogous to the dige…

You have been asked to experimentally determine the Calorie (1 Calorie = 1000 ca

You have been asked to experimentally determine the Calorie (1 Calorie = 1000 calories) values of various desserts. You realize that a combustion reaction is analogous to the dige…

You have been asked to experimentally determine the Calorie (1 Calorie = 1000 ca

You have been asked to experimentally determine the Calorie (1 Calorie = 1000 calories) values of various desserts. You realize that a combustion reaction is analogous to the dige…

You have been asked to measure the partition coefficient of drug candidates. All

You have been asked to measure the partition coefficient of drug candidates. All the procedures you have found require that the drug candidate absorb light in the UV-visible range…

You have been asked to measure the partition coefficient of drug candidates. All

You have been asked to measure the partition coefficient of drug candidates. All the procedures you have found require that the drug candidate absorb light in the UV-visible range…

You have been asked to mix 10 mL of fortified tobramycin eye drops (1%) for a pa

You have been asked to mix 10 mL of fortified tobramycin eye drops (1%) for a patient. You have the commercially prepared Tobrex 0.3% 10 mL on your shelf. You also have some prese…

You have been asked to prepare 100.0 inL of a buffer solution that is 0.150 M in

You have been asked to prepare 100.0 inL of a buffer solution that is 0.150 M in acetic acid and 0.250 M in sodium acetate. Calculate the grams of each component that you would we…

You have been asked to prepare 100.0 mL of a buffer solution that is 0.150 M in

You have been asked to prepare 100.0 mL of a buffer solution that is 0.150 M in acetic acid and 0.250 M in sodium acetate. Calculate the grams of each component that you would wei…

You have been asked to prepare a preliminary design for a packed gas-absorption

You have been asked to prepare a preliminary design for a packed gas-absorption column to recover acetone (concentration less than 0.01 mole fraction) from an air stream using wat…

You have been asked to prove that the Oil Spill Eater speeds up the reaction as

You have been asked to prove that the Oil Spill Eater speeds up the reaction as you found above. Describe the basic set up of a laboratory experiment to measure the effect of enzy…

You have been asked to separate N-methylmorpholine, a base, and benzhydroxamic a

You have been asked to separate N-methylmorpholine, a base, and benzhydroxamic acid (below), which are currently partitioned between dichloromethane and water in a separatory funn…

You have been asked to separate N-methylmorpholine, a base, and benzhydroxamic a

You have been asked to separate N-methylmorpholine, a base, and benzhydroxamic acid (below), which are currently partitioned between dichloromethane and water in a separatory funn…

You have been asked to test drive a car and study its actual performance relativ

You have been asked to test drive a car and study its actual performance relative to its specifications. This particular car's engine is rated at 180 hp. This value is thepeak rat…

You have been assigned the task of measuring the equilibrium constant for the re

You have been assigned the task of measuring the equilibrium constant for the reaction N2 O4 2NO2 as a function of temperature. To do so, you evacuate a rigid 2-liter vessel equip…

You have been assigned the task of measuring the equilibrium constant for the re

You have been assigned the task of measuring the equilibrium constant for the reaction N2 O4 2NO2 as a function of temperature. To do so, you evacuate a rigid 2-liter vessel equip…